Examine source code of Rainbow marshmallow

{
  "name": "Rainbow marshmallow",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "12-127881_wallpaper-marshmallow-spiral-pastel-sweet-pastel-wallpaper-desktop.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(247, 247, 247, 1)",
      "toolbar": "rgba(239, 207, 255, 0.52)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(252, 211, 249, 1)"
    }
  }
}